Allow continuing after failure in for-loops

[liamhuber]

I.e. if one or more children in the For-macro fail, just log their output as NOT_DATA and keep going. Should be optional, and I'm comfortable making it default to True.

[ligerzero-ai]

Hi Liam, is this implemented yet?

[liamhuber]

Nope. It is still an idea I like though.

There is now functionality to for composites to keep running after a child fails, and only raise the error once all other calculation paths finish, so this should make implementation easier.

[ligerzero-ai]

So, you won't be mad if I hacked in universal try; except statements into nodes which I expect to fail occasionally?

I'll do it for now on the VASP nodes, we can remove in the future if necessary.

[liamhuber]

I mean, I won't be happy but what you do inside your nodes is your business 😂

The nodes also have a "failed" output signal, so you might be able to use this to route to different data processing steps (i.e. real processing and placeholder "something went wrong" data) to make it less opaque